<header class="navbar navbar-fixed-top" style="background-image: none; background-color: rgb(240, 240, 240);">
  <div class="pull-left"> <a class="navbar-brand" href="#">
    <div class="navbar-logo"><img src="images/logo.png" alt="logo"></div>
    </a> </div>
  <div class="pull-right header-btns">
    <a class="user"><span class="glyphicons glyphicon-user"></span> <?php echo $adminName['admin_name']; ?></a>
    <a href="logout.php" class="btn btn-default btn-gradient" type="button"><span class="glyphicons glyphicon-log-out"></span> 退出</a>
  </div>
</header>